Пневматика и
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    Обзор

    Antennas mounted directly on the device or remote antennas increase the reliability of radio connections by optimizing signal reception and emission.

    • Used for routers, modems and communications processors for the mobile wireless standards 5G (public and private networks), LTE (4G), UMTS (3G) and GSM/GPRS (2G)
    • Coordinated range of antennas for the most diverse applications both indoors and outdoors

    Особенности

    • Cost-effective connection to devices in remote, difficult-to-access or demanding environments
    • Establishment of a reliable mobile wireless infrastructure through the use of remote antennas, even if the mobile wireless devices are installed in the control cabinet, for example

    Область применения

    Antennas mounted directly on the device or remote antennas optimize send and receive conditions and enable the use of remote network products in numerous industrial applications.
    In addition to antennas with directional radiation characteristics, omnidirectional antennas concentrate the radio field around the antenna in the shape of a disc. Both designs therefore result in improved radio communication quality.

    Application examples:

    • Remote access to globally distributed machines and plants, e.g. for Teleservice
    • Telecontrol applications, e.g. in the water and wastewater plant environment as well as oil and gas applications, and applications in the railway or public transport environments
    • Setup of communication networks in production plants
    • Other applications, for example, automation of power distribution networks (Smart Grid), video surveillance

    Дизайн

    Overview of mobile network antennas

    Функции

    The radio field is optimized for the application with antennas mounted directly on the device and remote antennas. In industrial applications, this permits a reliable radio connection.

    Omnidirectional antennas

    Omnidirectional antenna

    With omnidirectional antennas, the radio field is emitted evenly in every direction surrounding the antenna (horizontal opening angle: 360°), but it weakens as the distance increases. There is a concentration in the vertical direction which creates passive amplification of the radio field. Many omnidirectional antennas have extremely weak radiation directly below the antenna due to the construction type. This property can be seen in the associated antenna diagram.

    Antennas for use with the 5G mobile wireless standard in private networks up to 6 GHz

    ANT897-4MA

    The ANT897-4MA antenna is a broadband antenna that supports mobile wireless frequency bands from 617 to 5000 MHz. It has an antenna gain of 1 to 2 dBi (depending on the frequency band used), an SMA plug and degree of protection IP65. It is therefore ideally suited for direct mounting on SCALANCE MUM853-1 5G routers.

    ANT897-4MC

    The ANT897-4MC antenna is a broadband antenna that supports mobile wireless frequency bands from 617 to 5000 MHz. It has an antenna gain of 2 to 3 dBi (depending on the frequency band used), an N-Connect plug and IP65/67 degree of protection. It is therefore ideally suited for direct mounting on SCALANCE MUM856-1 5G routers.

    ANT897-4ME

    The ANT896-4ME antenna also supports the mobile radio frequency bands in the 617 to 6000 MHz range. It has an antenna gain of 2 to 6 dBi (depending on the frequency band used), an N-Connect socket and degree of protection IP65. This antenna can be connected to mobile network devices with an antenna connection cable from the SIMATIC NET range. This means the antenna can be positioned at the location that is best for radio transmission.

    ANT897-4PY

    The ANT897-4PY antenna is a compact MIMO antenna with 4 antenna elements. It can be used in a wide frequency spectrum from 617 to 6000 MHz and has an antenna gain of 3 to 5 dBi (depending on the frequency band used) and degree of protection IP65/67. The antenna can be connected directly to SCALANCE M mobile wireless devices with SMA socket via four cables each 2 m or 5 m in length (depending on the version) and with SMA plug. The antenna can be mounted either on a vehicle, a flat enclosure/roof or on a ceiling.

    Antennas for use with the 5G mobile wireless standard in certain frequency domains

    ANT897-5PN

    The ANT897-5PN antenna is a flat and compact MIMO antenna and contains 4 antenna elements. It can be used in a wide frequency spectrum from 2300 to 7200 MHz and can thus be used for both mobile communications (private networks) and WLAN (2.4/5/6 GHz band). It has an antenna gain of 4 to 6 dBi (depending on the frequency band used) and degree of protection IP69K. The four connections are designed as short cable pieces in staggered lengths with N-Connect sockets. The antenna can be connected to all mobile wireless or WLAN devices via suitable antenna connection cables from the SIMATIC NET range. It can be mounted either on a vehicle, a flat enclosure/roof or on a ceiling. This makes the antenna suitable for use on the Industrial 5G infrastructure and end device side.

    ANT795-4MX

    The ANT795-4MX antenna supports mobile wireless frequency bands from 1700 to 3800 MHz, as well as WLAN frequency bands at 2.4 and 5 GHz. It has an antenna gain of 1.5 to 2 dBi (depending on the frequency band used), N-Connect plugs and degree of protection IP68/69K. It can thus be used for direct mounting on SCALANCE MUM856-1 5G routers and is also suitable for use in railroad environments.

    ANT795-6MN

    The ANT795-6MN antenna supports mobile wireless frequency bands from 2400 to 2700 and 3400 to 3800 MHz, as well as WLAN frequency bands at 2.4 and 5 GHz. It has an antenna gain of 6 to 8 dBi (depending on the frequency band used), N-Connect socket and degree of protection IP65. This antenna can be connected to mobile network devices with an antenna connection cable from the SIMATIC NET range. This means the antenna can be positioned at the location that is best for radio transmission. It is also suitable for use in railway environments.

    ANT897-1NY

    The ANT897-1NY antenna is a flat and compact MIMO antenna and contains 2 antenna elements. It can be used in a wide frequency spectrum from 700 to 4200 MHz and has an antenna gain of 0 to 2 dBi (depending on the frequency band used) and degree of protection IP69K. The antenna can be connected directly to SCALANCE M mobile wireless devices with SMA socket via two cables each 3 m in length and with SMA plug. The antenna can be mounted on a non-conductive surface either on a vehicle, a flat enclosure/roof or on a ceiling.

    Antennas for use with the LTE (4G), UMTS (3G) and GSM (2G) mobile wireless standards.

    ANT896-4MA, ANT896-4ME and ANT896-6MH

    The ANT896-4MA antenna has an antenna gain of 2 dBi, features an additional joint, an SMA plug, and degree of protection IP54. It is therefore ideally suited for direct mounting on the SCALANCE M routers, the CP1242-7 communications processor and the compact SIMATIC RTU3000C telecontrol units
    The ANT896-4ME antenna has an antenna gain of 3 dBi, an N-Connect socket and degree of protection IP66. This antenna can be connected to the mobile wireless devices with an antenna connection cable from the SIMATIC NET range. This means the antenna can be positioned at the location that is best for radio transmission.
    The ANT896-6MH antenna features an antenna gain of 5-6 dBi (depending on the frequency band used), an N-Connect socket, and degree of protection IP69K. It is especially designed for use in railway applications and complies with the standards required for such applications (including EN50155, EN45545-2). This antenna can be connected to mobile wireless devices with an antenna connection cable suitable for railway applications from the SIMATIC NET range. This means the antenna can be positioned at the location that is best for radio transmission.

    ANT794-4MR

    The omnidirectional antenna ANT794-4MR supports the frequencies of the mobile wireless standards GSM (2G), UMTS (3G) and LTE (4G)1) and can be connected directly to all mobile wireless devices with SMA antenna sockets using the permanently installed connection cable of 5 meters length and its SMA plug. The cable is fastened with the mounting hardware supplied.

    1) Note LTE frequency bands.

    Интеграция

    SCALANCE M874-3 with mobile network antenna (front)

    SCALANCE M874-2 with mobile network antenna (front)

    LOGO! CMR with directly connected antennas

    Технические данные

    Article number

    6GK5897-4MA00-0AA3

    6GK5897-4MC00-0AA0

    6GK5897-4ME00-0AA0

    6GK5897-4PY00-0DA0

    6GK5897-1NY00-0AA0

    6GK5897-5PN00-0AA0

    6GK5795-4MX00-0AA0

    6GK5795-6MN10-0AA6

    product type designation

    ANT897-4MA antenna

    Antenna ANT897-4MC

    Antenna ANT897-4ME

    Antenna ANT795-4MX

    Antenna ANT795-6MN

    product brand name

    SCALANCE

    SCALANCE

    Technical Product Detail Page

    suitability for operation

    antenna for 5G/4G/3G/2G networks

    antenna for 5G/4G/3G/2G networks

    antenna for 5G/4G/3G/2G networks & IWLAN

    antenna for 5G/4G/3G/2G networks

    antenna for 5G/4G/3G/2G networks

    antenna for 5G/4G/3G/2G networks & IWLAN

    radio frequencies

    type of wireless network / is supported

    5G public networks, 5G private networks, LTE, UMTS, GSM

    5G public networks, 5G private networks, LTE, UMTS, GSM

    5G public networks, 5G private networks, LTE, UMTS, GSM, WLAN

    5G public networks, 5G private networks, LTE, UMTS, GSM

    5G public networks, 5G private networks, LTE, UMTS, GSM

    5G private networks, WLAN

    5G private networks, WLAN

    5G private networks, WLAN

    operating frequency / 1

    617 ... 960 MHz

    617 ... 960 MHz

    617 ... 698 MHz

    617 ... 960 MHz

    700 ... 960 MHz

    2300 ... 2700 MHz

    1700 ... 2000 MHz

    2400 ... 2700 MHz

    operating frequency / 2

    1452 ... 1576 MHz

    1452 ... 1496 MHz

    698 ... 960 MHz

    1452 ... 2700 MHz

    1700 ... 4200 MHz

    3400 ... 4200 MHz

    2000 ... 2700 MHz

    3400 ... 3800 MHz

    operating frequency / 3

    1710 ... 2690 MHz

    1710 ... 2690 MHz

    1427 ... 2700 MHz

    3300 ... 5925 MHz

    4900 ... 7200 MHz

    2700 ... 3800 MHz

    4900 ... 5925 MHz

    operating frequency / 4

    3300 ... 4200 MHz

    3300 ... 5000 MHz

    3300 ... 7125 MHz

    4900 ... 5925 MHz

    5925 ... 7125 MHz

    operating frequency / 5

    4400 ... 5000 MHz

    5925 ... 7125 MHz

    operating frequency

    • ● for WLAN in 2.4 GHz frequency band

    2.4 ... 2.7 GHz

    2.4 ... 2.7 GHz

    • ● for WLAN in 5 GHz frequency band 1

    4.9 ... 5.92 GHz

    4.9 ... 5.92 GHz

    electrical data

    antenna gain compared to spherical radiator

    • ● with linear radiation

    typical maximum gain

    typical max. gain, measured on supplied holder

    typical maximum gain measured on metallic floor area Ø 0.35 m with cable length 0.3 m

    measured in open space with 0.5 m cable

    typical maximum gain measured in open space

    • ● with linear radiation / in operating frequency area 1 / typical

    1 dB

    2 dB

    1 dB

    1 dB

    0 dB

    3 dB

    1.5 dB

    6 dB

    • ● with linear radiation / in operating frequency area 2 / typical

    2 dB

    2 dB

    2 dB

    4 dB

    2 dB

    5 dB

    2 dB

    6 dB

    • ● with linear radiation / in operating frequency area 3 / typical

    2 dB

    2 dB

    2 dB

    4 dB

    6 dB

    1.5 dB

    8 dB

    • ● with linear radiation / in operating frequency area 4 / typical

    2 dB

    3 dB

    7 dB

    2 dB

    8 dB

    • ● with linear radiation / in operating frequency area 5 / typical

    2 dB

    2.5 dB

    • ● with linear radiation / in operating frequency area 6 / typical

    3 dB

    impedance

    50 Ω

    50 Ω

    50 Ω

    50 Ω

    50 Ω

    50 Ω

    50 Ω

    50 Ω

    polarization

    Linear Vertical

    Linear Vertical

    Linear Vertical

    Linear Vertical

    Linear

    Linear Vertical

    Linear Vertical

    Linear Vertical

    radiation characteristic

    omnidirectional

    omnidirectional

    omnidirectional

    omnidirectional

    omnidirectional

    omnidirectional

    omnidirectional

    omnidirectional

    standing wave ratio (VSWR) / maximum

    3.5

    3.5

    3

    2.5

    3

    2

    2

    2

    radiating angle of the antenna

    take the antenna diagram into account regarding the horizontal beam angle

    • ● horizontal

    360°

    360°

    • ● in the 2.4 GHz frequency band / horizontal

    360°

    • ● in the 5 GHz frequency band / horizontal

    360°

    150°

    number of electrical connections / of the antenna

    1

    1

    1

    4

    2

    4

    1

    1

    type of electrical connection / of the antenna

    N-Connector

    N-Connector

    N-Connector

    SMA Connector

    SMA Connector

    N-Connector

    N-Connector

    N-Connector

    design of plug-in connection

    male, variable 0-90°

    male, straight

    female

    male

    male

    female

    male, straight

    female

    angle of inclination / downward / maximum

    mechanical data

    material

    • ● of the enclosure

    Aluminum, chromate-free conversion layer

    • ● of outer shell

    PC

    Glass fiber

    ASA

    PC+ABS

    Lexan EXL 9330

    Lexan EXL 9330

    ASA

    Polycarbonate

    color

    black

    black

    black

    black

    black

    white

    color / of cable sheath

    Black

    light gray

    ambient conditions

    ambient temperature

    • ● during operation

    -20 ... +65 °C

    -30 ... +70 °C

    -40 ... +80 °C

    -30 ... +70 °C

    -30 ... +70 °C

    -30 ... +70 °C

    -40 ... +85 °C

    -40 ... +80 °C

    • ● during storage

    -30 ... +70 °C

    -40 ... +85 °C

    -40 ... +80 °C

    -40 ... +85 °C

    -40 ... +80 °C

    -40 ... +85 °C

    -40 ... +85 °C

    -40 ... +80 °C

    • ● during transport

    -40 ... +85 °C

    -40 ... +85 °C

    -40 ... +80 °C

    relative humidity / at 25 °C / without condensation / during operation / maximum

    95 %

    protection class IP

    IP65

    IP65/67

    IP65

    IP65/67

    IP69K; with correct installation

    IP69K; with correct installation

    IP68/IP69K

    IP65; with correct installation

    wind load / maximum

    10 N; at 160 km/h

    product feature / resistant to UV radiation

    Yes

    shock resistance

    according to EN61373, category1, class b (for railway carriage)

    design, dimensions and weights

    width

    35 mm

    86 mm

    height

    160 mm

    132 mm

    82 mm

    53 mm

    30 mm

    30 mm

    55 mm

    43 mm

    depth

    13 mm

    86 mm

    diameter

    24 mm

    48 mm

    153 mm

    115 mm

    115 mm

    22 mm

    net weight

    27 g

    96 g

    212 g

    1290 g

    330 g

    50 g

    300 g

    fastening method

    from outside in 32 mm drill hole, one stainless steel nut

    from outside in 19 mm drill hole, one stainless steel nut

    from outside in 24 mm drill hole, one stainless steel nut

    fastening method

    • ● mast mounting

    No

    No

    Yes

    No

    No

    No

    No

    • ● flat roof mounting

    No

    No

    Yes

    Yes

    Yes

    Yes

    Yes

    • ● wall mounting

    No

    No

    Yes

    No

    No

    No

    No

    Yes

    • ● roof mounting

    No

    No

    No

    Yes

    Yes

    Yes

    No

    Yes

    • ● directly on the device

    Yes

    Yes

    No

    No

    No

    No

    Yes

    No

    cable designation

    J195

    RG174

    CS32

    wire length / of antenna cable

    2 m

    3 m

    wire length / of antenna cable / graded

    0.2 ... 0.275 m

    product features, product functions, product components / general

    product feature / silicon-free

    Yes

    Yes

    Yes

    No

    Yes

    Yes

    Yes

    Yes

    standards, specifications, approvals

    certificate of suitability

    Railway application in accordance with NF-F-16-101, NF-F-16-102

    certificate of suitability

    • ● RoHS conformity

    Yes

    Yes

    Yes

    Yes

    Yes

    Yes

    Yes

    Yes

    • ● railway application in accordance with EN 50155

    Yes

    Yes

    • ● fire protection in accordance with EN 45545-2

    Yes

    Yes

    Marine classification association / Korean Register of Shipping (KRS)

    Yes

    product conformity

    UL 94-HB

    UL 94-V0

    wireless approval

    Current national approvals can be found on the Internet under www.siemens.com/mobilfunkzulassungen

    Current national approvals can be found on the Internet under www.siemens.com/mobilfunkzulassungen

    Current national approvals can be found on the Internet under www.siemens.com/mobilfunkzulassungen

    Current national approvals can be found on the Internet under www.siemens.com/mobilfunkzulassungen

    Current national approvals can be found on the Internet under www.siemens.com/mobilfunkzulassungen

    Current national approvals can be found on the Internet under www.siemens.com/mobilfunkzulassungen

    Current national approvals can be found on the Internet under www.siemens.com/funkzulassungen

    Current national approvals can be found on the Internet under www.siemens.com/funkzulassungen

    further information / internet links

    internet link

    • ● to website: Selection guide for cables and connectors

    • ● to web page: selection aid TIA Selection Tool

    • ● to web page: WLAN country approval

    • ● to website: Mobile radio national approval

    • ● to website: Industrial communication

    • ● to web page: SiePortal

    • ● to website: Image database

    • ● to website: CAx-Download-Manager

    • ● to website: Industry Online Support

    security information

    security information

    Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under . (V4.7)

    Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under . (V4.7)

    Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under . (V4.7)

    Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under . (V4.7)

    Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under . (V4.7)

    Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under . (V4.7)

    Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under . (V4.7)


    Дальнейшая информация

    Cabling range:

    You can find pre-assembled connecting cables for mobile wireless products in the Industry Mall under Antenna connection system.

    Ответственный редактор / Инженер

    Директор «Би Энд Би Инжиниринг»
    «Описание оборудования на этой странице составлено на основе нашего 10-летнего опыта работы в сфере пневматического оборудования, запорной арматуры и промышленной автоматизации. Если у вас есть вопросы или комментарии — напишите мне лично».